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<h2><font color="#e00000">Why OpenBSD Developers Use CVS</font></h2>
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<p>
<a href="http://ximbiot.com/cvs/">The Concurrent Version System (CVS)</a>
was selected for use by the OpenBSD project group.
With CVS, seventy or so developers are able to
update the source code (which is around 1.2GB, around 140,000 files) that
comprise the OS, <a href="ports.html">ports/packages</a>, and the X 
Window System.
A large number of OpenBSD users
then download the OS sources via <a href="anoncvs.html">anonymous CVS</a>,
a procedure that is much more reliable than the Software
Upgrade Protocol
(<a href="http://www.openbsd.org/cgi-bin/man.cgi?query=sup&amp;sektion=1">sup(1)</a>).

<p>
CVS also allows easy creation and maintenance of branches so that we
can provide a release + patches source tree and an up to the minute
development source tree with parallel development.
With <a href="http://www.openbsd.org/cgi-bin/cvsweb">CVSweb</a>, a convenient
and navigable web accessible interface to all of this is available as well.

<p>
Since CVS interfaces with the Secure Shell
(<a href="http://www.openbsd.org/cgi-bin/man.cgi?query=ssh&amp;sektion=1">ssh(1)</a>)
it can provide reliable
user and host authentication.  This fits in well with the OpenBSD
project's <a href="goals.html">goal of security</a>.

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<small>$OpenBSD: why-cvs.html,v 1.22 2006/12/08 01:14:00 nick Exp $</small>

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